Attachment for disk harrows



J. A. HENNINGER ATTACHMENT FOR DISK HARROWS Filed larch 15, 1927 March 21, 1928. j 1,664,075

Invent/1r Patented Mar. 27, 1928.

v 1 1,664,075 PATENT OFFICE;

JAMES A. HENNINGER, OF ROUNDUP; MONTANA.

ATTACHMENT FOR DISK HARBOWS.

Application filed March 15; 1927 SerialNoi 175,497.

The present invention relates to attachments for disk harrows of the type wherein the disks are arranged in gangs, and the prime object of the invention is to provide in the attachment means for regulating the depth of the disks in the ground and the angles of said disks in'relation to the ground.

Another important object of the invention lies in the provision of attachments of this nature which may be incorporated in the structure of conventional disk harrows of the gang type without necessitatingany changes in the structure of the harrow.

A still further very important object of the invention lies in the provision of an attachment which is simple in its construction,

efiicient and reliable in use, easy to'manipulate, strong and durable, and otherwise well adaptedto the purpose for which it is designed.

With the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of. construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing :v

Figure 1 is a topplan view of a conventional harrow showing my attachment associated therewith, and

Figure 2 is a side'elevation of one of the attachments showing portions in section for clearness.

Referring to the drawing in detail it will be seen that the letter A denotes generally the draft frame of the harrow of the two gang type. The two gangs of disk harrows are mounted in the usual well known'manner below the gang frames B, each of which is provided at its rear with the bar C for supporting the usual disk scrapers.

Allthe parts thus fardescribed are conventional and have been illustrated in the accompanying drawing merely to bring out clearlyv the utility and advantages of my attachment. 7

There are two attachments for each harrow of the two gang type, that is there is one attachment for each gang. These attachments are identical in construction, and thelrefore, only one will be described in detai Referring to one of the attachments in detail, it will be seen that a pair of cross bars 5 are attached to the gang frame B to ties of the bifurcations of the levers.

per ends of standards 9.

extend slightly rearwardly thereof. An attachinent frame 6 is of substantially U-shape in formation and has its extremities bolted or otherwise fixed as at 7 to the rear ends of the cross bars 5 so as to extend in a plane parallel to the plane of the frame B. In

the corners, that is, at the junctures of the bight with thelegs of the frame 6 there are formed bearings 8 for slidably receiving standards 9, the lower ends of which are formed with yokes 10 in which are journa-led wheels 11. Collars 12 are fixed in any suitable manner as at l3 to the standards 9 a slight distance below the upper ends thereof and above the frame'6, and in spaced relation to each other. Pins 14 extend from a sleeve 12 disposed between collars 12. The sleeve 12 is formed with a rearwardly extending notch sector 15. Levers '16 have their forward ends bifurcated. These bifurcations are bowed as at 17 to'extend around the sleeve 12 and'have' openings intermediate their ends pierced by the pins 14. The forward ends of these bifurcations extend in spaced parallelismto receive'thereb'etween links 18 by means of bolts or pins 19 which pierce openings 20 in the forward extremi- There are a plurality of these openings 20 in each lever so that the location of the links may be changed to vary the leverage as maybe desired. These links 18 depend downwardiy, and are pivotallyengaged as at 21 with bolts 22 extending through openings in the legs of the frame 6. Nuts 23 are engaged on the lower ends of the bolts 22-and hold in place brace rods 24 which are engaged by U bolts 25 on the hub of one of the disks. On each lever 16 :there are'mounted lugs 26 through which are. slidable the shank of an elongated pawl27 which is provided with a stop adjacent its engaging end so that a coil spring 29 may be disposed thereabout to impinge against the forward lug 26 and the vstop 28 for normally holding the forward-end of the pawl engaged in one of the notches of the notched sector 15. A brace rod '30 is attached to the frame A as at 31 in any suitable manner and has a cross rod terminate in sleeves 33 for receiving the up- Pins 34: pierce transverse openings in the upper extremities of the standards 9 above the sleeves 30.

It is thought that the construction of the attachments will now be clearly understood 

